Coffee maker water reservoir



FIG. 1 is a perspective view of the coffee maker water reservoir;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines represent unclaimed matter and form no part of the claimed design. 

CLAIM The ornamental design for a coffee maker water reservoir, as shown, and described. 